[object Object][object Object][object Object]undefined[object Object]

• Description: Performs Real Fast Fourier Transform (RFFT) on the input tensor [object Object], and outputs a complex tensor containing non-negative frequencies.

• Formula:

  $${\displaystyle X_{k}=\sum _{n=0}^{N-1}x_{n}\cdot e^{-i2\pi {\tfrac {k}{N}}n}}$$

• Example: If [object Object] is {1, 2, 3, 4}, then [object Object] = {10, 0, -2, 2, -2, 0} = {10 + 0j, -2 + 2j, -2 + 0j} (customized).

[object Object]

Each operator has calls. First, [object Object] is called to obtain the workspace size required for computation and the executor that contains the operator computation process. Then, [object Object] is called to perform computation.

• [object Object]
• [object Object]

[object Object]

• Parameters

  • [object Object] (aclTensor*, compute input): input in the formula. The data type can be FLOAT, and the can be ND. The shape supports 1 to 7 dimensions.
  • [object Object] (int64_t, compute input): signal length. The data type is INT64. If the value is specified, the input will be zeroed or trimmed to this length before Rfft1D is computed. The value range of n is [1, 4096]. The maximum value of 2[object Object]n[object Object] is 262144.
  • [object Object] (int64_t, compute input): dimension. The data type is INT64. If the value is specified, RFFT applies to the specified dimension. The supported values are [-self.dim(), self.dim()-1].
  • [object Object] (int64_t, compute input): normalization mode. The data type is INT64. The value [object Object] indicates no normalization, [object Object] indicates normalization by 1/n, and [object Object] indicates normalization by 1/sqrt(n).
  • [object Object] (aclTensor*, compute output): output in the formula. The data type can be FLOAT. The can be ND.
  • [object Object] (uint64_t, output): size of the workspace to be allocated on the device.
  • [object Object] (aclOpExecutor*, output): operator executor, containing the operator computation process.

• Returns:

  [object Object]: status code. For details, see .

  [object Object]

[object Object]

• Parameters

  • [object Object] (void*, input): address of the workspace to be allocated on the device.
  • [object Object] (uint64_t, input): size of the workspace to be allocated on the device, which is obtained by calling [object Object].
  • [object Object] (aclOpExecutor*, input): operator executor, containing the operator computation process.
  • [object Object] (aclrtStream, input): stream for executing the task.

• Returns:

  [object Object]: status code. For details, see .

[object Object]

• Deterministic computing:
  • [object Object] defaults to a deterministic implementation.

[object Object]

The following example is for reference only. For details, see .